Refrigerator Basket Lift Mechanism for Raised Lower Drawer Access
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Solution Overview
Problem
Conventional refrigerators require users to bend or crouch to access baskets located at the lower portion, causing inconvenience when retrieving or storing food.
Innovation Solution
A basket lift apparatus is integrated into the refrigerator, comprising a lifting frame, driving unit, and control unit that lifts the basket when drawn out of the lower cooling chamber, allowing it to be positioned at a more accessible height using a sliding door and guide rails, with sensors and a controller to manage the lifting and lowering process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the basket is arranged at a lower portion of the refrigerator body, then the storage capacity and cooling efficiency are improved, but the user convenience deteriorates as users must bend or crouch to access the basket
Solution Approach 1:
The basket is transformed from a static fixed-position component to a dynamic movable component that can change its vertical position. The lifting mechanism allows the basket to move between a lower storage position and an elevated access position, enabling users to access the basket at a comfortable height while maintaining the lower position for optimal storage capacity and cooling efficiency when not in use.
Solution Approach 2:
The system performs preliminary action by automatically elevating the basket to an accessible height before the user needs to access it. When the door is opened, the lifting mechanism proactively raises the basket to a convenient position, so the user does not need to bend or crouch, thereby resolving the contradiction between low basket position and user convenience.
2Ease of operation
If a lifting mechanism is added to elevate the basket, then user convenience is improved, but the device complexity increases
Solution Approach 1:
The lifting mechanism is integrated with the existing door assembly, allowing the door to serve dual functions: as a closure for the cooling chamber and as a actuator for the basket lifting mechanism. This multi-functionality reduces the need for separate control systems and simplifies the overall device complexity while maintaining the ability to elevate the basket for user convenience.
Solution Approach 2:
The system employs self-service by utilizing the door opening action itself to trigger the lifting mechanism. The door's movement directly activates the lifting apparatus through mechanical linkage, eliminating the need for separate motors, sensors, or control electronics that would increase device complexity. The basket lifts automatically as a direct consequence of door opening.
Data Source
AI summary
A refrigerator having a basket lift apparatus comprises: a body having cooling chambers for storing food; a basket accommodated in the cooling chamber in a slidable manner; and a basket lift apparatus installed at the basket and lifting the basket when the basket is drawn out of the cooling chamber. When the basket is drawn out of the lower cooling chamber, the basket is lifted by using the basket lifting apparatus thereby to enhance the user's convenience.